AAT3190(2004) Ver la hoja de datos (PDF) - Analog Technology Inc

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AAT3190
(Rev.:2004)

Positive/Negative Charge Pump for Voltage Bias

Analog Technology Inc 

AAT3190

Positive/Negative Charge Pump for Voltage Bias

Pin Description

Pin #

MSOP-8

TSOPJW-12

1

5

Symbol

FBP

2

4

EN

3

3

REF

4

2

FBN

5

12

DVRP

6

8, 9, 10, 11

GND

7

7

DRVN

8

1

VIN

Function

Positive Charge-Pump Feedback Input. Regulates to 1.2V

nominal. Connect feedback resistive divider to analog

ground (GND).

Enable Input. When EN is pulled low, the device shuts off

and draws only 1.0µA. When high, it is in normal opera-

tions. Drive EN through an external resistor.

Internal Reference Bypass Terminal. Connect a 0.1 µF

capacitor from this terminal to analog ground (GND).

External load capability to 50µA. REF is disabled in

shutdown.

Negative Charge-Pump Regulator Feedback Input.

Regulates to 0V nominal. Connect feedback resistive

divider to the reference (REF).

Positive Charge-Pump Driver Output. Output high level is

VIN and low level is PGND.

Ground

Negative Charge-Pump Driver Output. Output high level is

VIN, and low level is PGND.

Input Voltage. 2.7 - 5.5 Volts.

Pin Configuration

MSOP-8

(Top View)

TSOPJW-12

(Top View)

FBP 1

EN 2

REF 3

FBN 4

8 VIN

7 DRVN

6 GND

5 DRVP

VIN 1

FBN 2

REF 3

EN 4

FBP 5

N/C 6

12 DRVP

11 GND

10 GND

9 GND

8 GND

7 DRVN

2

3190.2004.05.0.91

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